CN104420476A - Method and device using home-made small tube well to lower underground water level - Google Patents
Method and device using home-made small tube well to lower underground water level Download PDFInfo
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- CN104420476A CN104420476A CN201310377705.0A CN201310377705A CN104420476A CN 104420476 A CN104420476 A CN 104420476A CN 201310377705 A CN201310377705 A CN 201310377705A CN 104420476 A CN104420476 A CN 104420476A
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- well
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- foundation ditch
- self
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000001556 precipitation Methods 0.000 claims abstract description 16
- 238000010276 construction Methods 0.000 claims abstract description 12
- 238000005086 pumping Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 238000004062 sedimentation Methods 0.000 claims description 10
- 239000003651 drinking water Substances 0.000 claims description 8
- 235000020188 drinking water Nutrition 0.000 claims description 7
- 239000000706 filtrate Substances 0.000 claims description 7
- 239000003673 groundwater Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 241000209094 Oryza Species 0.000 claims description 6
- 235000007164 Oryza sativa Nutrition 0.000 claims description 6
- 230000037452 priming Effects 0.000 claims description 6
- 235000009566 rice Nutrition 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 210000005239 tubule Anatomy 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000002689 soil Substances 0.000 abstract description 2
- 239000012466 permeate Substances 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Sewage (AREA)
Abstract
The invention discloses a method and a device using a home-made small tube well to lower an underground water level. According to the method using the home-made small tube well to lower the underground water level, a water stop ring is formed at the periphery of a foundation ditch through arranging a group of home-made small tube wells at the bottom of the foundation ditch and pumping water in the home-made small tube wells to a drainage ditch in the top of the foundation ditch through a water pump; the underground water near the home-made small tube wells would not permeate into the foundation ditch in short time so that the foundation ditch construction requirements are satisfied. The method and device using the home-made small tube well to lower the underground water level are especially suitable for an engineering featured with small precipitation depth, rich underground water resource, large foundation soil permeation coefficient and large underground water flow rate; the home-made small tube well precipitation system is capable of lowering the underground water level near the well point in short time, when a plurality of tube well precipitation points are used together, the water stop ring is formed at the periphery of the foundation ditch, and the underground water level in the foundation ditch is lowered to the position which meets the construction requirements. The device using the home-made small tube well to lower the underground water level is broad in material source, easy and convenient to process, small in well completion range and obvious in precipitation effect.
Description
Technical field
the present invention relates to and a kind ofly utilize the method and device of making little pipe well dewatering by oneself, belong to local dewatering technical field.
Background technology
along with the development of modern economy, highrise building has become the main trend of modern architecture development, highrise building many employings mat foundation, box foundation or pile-raft foundation, according to designing requirement, the embeded depth of foundation of building generally should not be less than 1/15 of depth of building, with in current highrise building, the 99m of the many employings of structure height is example, building foundation buried depth is approximately 7m, if basement is double-deck, its embeded depth of foundation may be darker, so, such engineering is when basic earthwork excavates, great majority all can run into underground water, precipitation problem becomes a great problem of building operations.At present, mainly adopt powerful water pump to carry out drawing water in the prior art and the mode of draining carrys out dewatering, existing this processing mode, to draw water and while draining, its water of discharging again rapid permeability, in foundation ditch, thus greatly reduces the effect of the precipitation that draws water.The problem that inefficiency, construction cost are high so existing this dewatering mode not only also exists, the construction period is long, but also there is the problems such as dewatering effect difference.Therefore, the mode of existing dewatering is very undesirable.
Summary of the invention
the object of the invention is to, provide a kind of and construct easily, dewatering effect utilizes the method and device of making little pipe well dewatering by oneself preferably, to solve the precipitation problem run in foundation construction process, thus overcome the deficiencies in the prior art.
technical scheme of the present invention:
a kind ofly utilize the method for making little pipe well dewatering by oneself, the method makes little pipe well by oneself by arranging one group bottom foundation ditch, the water infiltrated in the little pipe well of self-control is extracted into the gutter at foundation ditch top by water pump simultaneously, thus forms a sealing collar at foundation ditch periphery; Groundwater table near the little pipe well of self-control can not be seeped in foundation ditch at short notice, to meet foundation pit construction requirement.
in preceding method, bottom described one group of self-control tubule well foundation ditch, surrounding is uniform.
in preceding method, the construction sequence of the little pipe well of described self-control is as follows:
step 1, making filter pipe; Be the steel pipe manufacturing of 300mm with diameter, bottom steel pipe, close weldering with 5mm steel plate, bottom steel pipe and some diameters of side face drilling be about the hole of 30mm, pitch-row 80mm, then rolls up layer of steel wire net outward at steel pipe and fixes;
step 2, in foundation ditch, dig pipe well; The degree of depth of pipe well is 2-3 rice, and diameter is 0.8-1 rice;
step 3, vertically inserted in pipe well by filter pipe, filter pipe top is higher than pipe well mouth 500mm; The coarse sands layer that 200mm is thick is spread bottom filter pipe, then at the thick macadam of coarse sands layer upper berth 300mm;
step 4, the cobble being not less than 100mm with particle diameter fill up the gap between filter pipe and pipe well.
in preceding method, described water pump adopts 40WBZ6.3-16C or 50ZWL15-30 type high-delieving-head self-suction pump, the drinking-water pipe of self priming pump inserts the macadam surface location bottom filter pipe, and the outlet pipe of self priming pump extends to the sedimentation basin at foundation ditch top, and the underground water of extraction drains into gutter after precipitation.
according to the device that preceding method is formed, comprise a group of being distributed in surrounding bottom foundation ditch and make little pipe well by oneself, make by oneself in little pipe well and be provided with filter pipe, the upper orifice of filter pipe higher than the little pipe well well head 500mm of self-control, filter pipe and make by oneself between little pipe well and be provided with filtrate; The well head making little pipe well by oneself is provided with water pump, and the drinking-water pipe mouth of pipe of water pump is positioned at the bottom of filter pipe, and the outlet pipe of water pump is connected with the sedimentation basin at foundation ditch top; The gutter of sedimentation basin is connected with gutter.
in aforementioned means, described filtrate is the cobble being filled in filter pipe and making more than the particle diameter 100mm between little pipe well by oneself.
in aforementioned means, be provided with platform bottom described water pump, platform is higher than the upper orifice of filter pipe.
in aforementioned means, described filter pipe comprises well casing, and well casing is positioned at foundation ditch elevation of bottom and is evenly equipped with filter opening with lower part, and the well casing outside filter opening is provided with filter screen, and the bottom in well casing is provided with coarse sands layer, is provided with macadam on coarse sands layer.
in aforementioned means, described filter screen is the layer of steel wire net of the filter opening outer wrapping on well casing.
in aforementioned means, be provided with shrouding bottom described well casing, shrouding is evenly equipped with filter opening, outside filter opening, be provided with filter screen; Well casing top is provided with well lid, and well lid is provided with the through hole passed through for pumping for water pump pipe.
compared with prior art, it is little that the present invention is applicable to precipitation depth, adopts the engineering of bright well precipitation bottom foundation ditch, after being also applicable to adopt the hole precipitation method such as outer precipitation or water-stop curtain, still there is the engineering of open fire in foundation ditch simultaneously.Be specially adapted to the little but groundwater resources of precipitation depth enrich, foundation soil transmission coefficient is large, the engineering that groundwater discharge is large, the little pipe well precipitation system of this self-control can reduce groundwater table near well point at short notice, when multiple tube well dewatering point uses jointly, a sealing collar will be formed at foundation ditch periphery, the groundwater table of foundation ditch inside is down to the position meeting construction requirement.The present invention draws materials simply, processing simple and convenient, and constructing operation is simple, and become well scope little, dewatering effect is obvious.
Accompanying drawing explanation
fig. 1 is structural representation of the present invention;
fig. 2 is the structural representation of filter pipe.
being labeled as in accompanying drawing: 1-makes little pipe well by oneself, 2-filter pipe, 3-filtrate, 4-water pump, 5-drinking-water pipe, 6-outlet pipe, 7-sedimentation basin, 8-gutter, 9-well casing, 10-filter opening, 11-filter screen, 12-coarse sands layer, 13-macadam, 14-well lid, 15-through hole, 16-foundation ditch face that frontier defense is protected, 17-platform.
Detailed description of the invention
below in conjunction with accompanying drawing, the present invention is described in further detail, but not as any limitation of the invention.
utilize a method of making little pipe well dewatering by oneself, as shown in Figure 1.The method makes little pipe well by oneself by arranging one group bottom foundation ditch, and bottom one group of self-control tubule well foundation ditch, surrounding is uniform.The water infiltrated in the little pipe well of self-control is extracted into the gutter at foundation ditch top by water pump simultaneously, thus forms a sealing collar at foundation ditch periphery; Groundwater table near the little pipe well of self-control can not be seeped in foundation ditch at short notice, to meet foundation pit construction requirement.Described water pump adopts 40WBZ6.3-16C or 50ZWL15-30 type high-delieving-head self-suction pump, the drinking-water pipe of self priming pump inserts the macadam surface location bottom filter pipe, the outlet pipe of self priming pump extends to the sedimentation basin at foundation ditch top, and the underground water of extraction drains into gutter after precipitation.
the construction sequence of the little pipe well of described self-control is as follows:
step 1, making filter pipe; Be the steel pipe manufacturing of 300mm with diameter, bottom steel pipe, close weldering with 5mm steel plate, bottom steel pipe and some diameters of side face drilling be about the hole of 30mm, pitch-row 80mm, then rolls up layer of steel wire net outward at steel pipe and fixes;
step 2, in foundation ditch, dig pipe well; The degree of depth of pipe well is 2-3 rice, and diameter is 0.8-1 rice;
step 3, vertically inserted in pipe well by filter pipe, filter pipe top is higher than pipe well mouth 500mm; The coarse sands layer that 200mm is thick is spread bottom filter pipe, then at the thick macadam of coarse sands layer upper berth 300mm;
step 4, the cobble being not less than 100mm with particle diameter fill up the gap between filter pipe and pipe well.
according to the device that preceding method is formed, as shown in Figure 1.Comprise a group of being distributed in surrounding bottom foundation ditch and make little pipe well 1 by oneself, make by oneself in little pipe well 1 and be provided with filter pipe 2, the upper orifice of filter pipe 2 higher than the little pipe well 1 well head 500mm of self-control, filter pipe 2 and make by oneself between little pipe well 1 and be provided with filtrate 3; The well head making little pipe well 1 by oneself is provided with water pump 4, and drinking-water pipe 5 mouth of pipe of water pump 4 is positioned at the bottom of filter pipe 2, and the outlet pipe 6 of water pump 4 is connected with the sedimentation basin 7 at foundation ditch top; The gutter of sedimentation basin 7 is connected with gutter 8.Described filtrate 3 is the cobbles being filled in filter pipe 2 and making more than the particle diameter 100mm between little pipe well 1 by oneself.Be provided with platform 17 bottom described water pump 4, platform 17 is higher than the upper orifice of filter pipe 2.Described filter pipe 2 as shown in Figure 2, comprises well casing 9, and well casing 9 is positioned at foundation ditch elevation of bottom and is evenly equipped with filter opening 10 with lower part, and the well casing 9 outside filter opening 10 is provided with filter screen 11, and the bottom in well casing 9 is provided with coarse sands layer 12, is provided with macadam 13 on coarse sands layer 12.Described filter screen 11 is layer of steel wire nets of filter opening 10 outer wrapping on well casing 9.Be provided with shrouding bottom described well casing 9, shrouding be evenly equipped with filter opening 10, outside filter opening, be provided with filter screen 11; Well casing 9 top is provided with well lid 14, and well lid 14 is provided with the through hole 15 passed through for pumping for water pump pipe 5.
Embodiment
during concrete enforcement, as shown in Figure 1.Bottom foundation ditch, surrounding digs about about 2 meters of some degree of depth uniformly, the dewatering well that diameter is about 0.8 meter.Then be greater than dewatering well about degree of depth 500mm by length, the steel pipe well casing 9 of diameter 300mm makes filter pipe 2.The steel plate sealing using 5mm thick bottom well casing 9, then use electrogas welding at the sidewall of pipe well 9 and bottom cutting filter opening 10, filter opening 10 diameter 30mm, filter opening 10 indulges horizontal spacing all at about 80mm, whole well casing needs to be embedded in below ground part all to be needed to cut filter opening 10, after filter opening 10 cuts, carry out closing parcel, as filter screen 11 with gauze wire cloth outside well casing 9.After filter pipe 2 is made, had by filter pipe 2 filter screen 11 1 sections vertically to stand on the shaft bottom of dewatering well, about 500mm bottom foundation ditch is exposed in filter pipe 2 upper end.Then bottom filter pipe 2, first spread the thick coarse sands layer of about 200mm 12, then on coarse sands layer 12, repave the thick macadam of about 300mm 13, define sand filter blanket.The last cobble using particle diameter to be greater than 100mm outside well casing 9 is filled well casing 9 jam-packed, be convenient to like this form water channel at well casing 9 periphery, prevent filter screen 11 and filter opening 10 from being blocked by sandstone, affect dewatering effect, finally a well lid 14 is set well casing 9 is suitable for reading, well lid 14 is opened a through hole 15, through hole 15 is opened at well lid 14 edge, drinking-water pipe 5 inserts in dewatering well from the through hole 15 of bias, then the high-delieving-head self-suction pump of 40WBZ6.3-16C type or 50ZWL15-30 two profiles number is used to draw water, the gutter 8 by outlet pipe 6 underground water in infiltration pipe 2 being evacuated to foundation ditch top is discharged.During normal use, well lid 14 seals the mouth of pipe, to prevent foreign material from falling in dewatering well, when checking water level in well, only needs rotating well cover 14 can check water level conditions in well.
Claims (10)
1. one kind utilizes the method for making little pipe well dewatering by oneself, it is characterized in that: the method makes little pipe well by oneself by arranging one group bottom foundation ditch, the water infiltrated in the little pipe well of self-control is extracted into the gutter at foundation ditch top by water pump simultaneously, thus forms a sealing collar at foundation ditch periphery; Groundwater table near the little pipe well of self-control can not be seeped in foundation ditch at short notice, to meet foundation pit construction requirement.
2. method according to claim 1, is characterized in that: bottom described one group of self-control tubule well foundation ditch, surrounding is uniform.
3. method according to claim 2, is characterized in that: the construction sequence of the little pipe well of described self-control is as follows:
Step 1, making filter pipe; Be the steel pipe manufacturing of 300mm with diameter, bottom steel pipe, close weldering with 5mm steel plate, bottom steel pipe and some diameters of side face drilling be about the hole of 30mm, pitch-row 80mm, then rolls up layer of steel wire net outward at steel pipe and fixes;
Step 2, in foundation ditch, dig pipe well; The degree of depth of pipe well is 2-3 rice, and diameter is 0.8-1 rice;
Step 3, vertically inserted in pipe well by filter pipe, filter pipe top is higher than pipe well mouth 500mm; The coarse sands layer that 200mm is thick is spread bottom filter pipe, then at the thick macadam of coarse sands layer upper berth 300mm;
Step 4, the cobble being not less than 100mm with particle diameter fill up the gap between filter pipe and pipe well.
4. method according to claim 3, it is characterized in that: described water pump adopts 40WBZ6.3-16C or 50ZWL15-30 type high-delieving-head self-suction pump, the drinking-water pipe of self priming pump inserts the macadam surface location bottom filter pipe, the outlet pipe of self priming pump extends to the sedimentation basin at foundation ditch top, and the underground water of extraction drains into gutter after precipitation.
5. the device that method is formed according to the arbitrary claim of Claims 1 to 4, it is characterized in that: comprise a group of being distributed in surrounding bottom foundation ditch and make little pipe well (1) by oneself, make by oneself in little pipe well (1) and be provided with filter pipe (2), the upper orifice of filter pipe (2), higher than self-control little pipe well (1) well head 500mm, is provided with filtrate (3) between filter pipe (2) and the little pipe well of self-control (1); The well head making little pipe well (1) by oneself is provided with water pump (4), and drinking-water pipe (5) mouth of pipe of water pump (4) is positioned at the bottom of filter pipe (2), and the outlet pipe (6) of water pump (4) is connected with the sedimentation basin (7) at foundation ditch top; The gutter of sedimentation basin (7) is connected with gutter (8).
6. device according to claim 5, is characterized in that: described filtrate (3) is the cobble of more than the particle diameter 100mm be filled between filter pipe (2) and the little pipe well of self-control (1).
7. device according to claim 5, is characterized in that: described water pump (4) bottom is provided with platform (17), and platform (17) is higher than the upper orifice of filter pipe (2).
8. device according to claim 5, it is characterized in that: described filter pipe (2) comprises well casing (9), well casing (9) is positioned at foundation ditch elevation of bottom and is evenly equipped with filter opening (10) with lower part, filter opening (10) well casing outward (9) is provided with filter screen (11), bottom in well casing (9) is provided with coarse sands layer (12), is provided with macadam (13) on coarse sands layer (12).
9. device according to claim 7, is characterized in that: described filter screen (11) is the layer of steel wire net of filter opening (10) outer wrapping on well casing (9).
10. device according to claim 7, is characterized in that: described well casing (9) bottom is provided with shrouding, shrouding is evenly equipped with filter opening (10), is provided with filter screen (11) outside filter opening; Well casing (9) top is provided with well lid (14), and well lid (14) is provided with the through hole (15) passed through for pumping for water pump pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310377705.0A CN104420476B (en) | 2013-08-27 | 2013-08-27 | A kind of method and device that utilizes self-control tubule well lowering of watertable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310377705.0A CN104420476B (en) | 2013-08-27 | 2013-08-27 | A kind of method and device that utilizes self-control tubule well lowering of watertable |
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| Publication Number | Publication Date |
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| CN104420476A true CN104420476A (en) | 2015-03-18 |
| CN104420476B CN104420476B (en) | 2016-05-18 |
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| CN201310377705.0A Expired - Fee Related CN104420476B (en) | 2013-08-27 | 2013-08-27 | A kind of method and device that utilizes self-control tubule well lowering of watertable |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277807A (en) * | 2018-04-09 | 2018-07-13 | 浙江乔兴建设集团有限公司 | Deep basal pit artesian water is prominent to gush decompression control water-bound |
| CN108547315A (en) * | 2018-04-21 | 2018-09-18 | 天津中擎建筑工程有限公司 | Sough basement construction scheme |
| CN109930614A (en) * | 2019-04-12 | 2019-06-25 | 中亿丰建设集团股份有限公司 | Deep basal pit pipe well runs the not damaged construction method of closed bottom structure |
| CN110055987A (en) * | 2019-05-31 | 2019-07-26 | 长沙市市政工程有限责任公司 | A kind of rich water mobile sand layer foundation pit tool-type dewatering well device |
| CN110409474A (en) * | 2019-08-07 | 2019-11-05 | 中煤第三建设（集团）有限责任公司 | It is placed in the pipe well for lower water of diaphram wall bottom |
| CN110485448A (en) * | 2019-08-20 | 2019-11-22 | 中交第二公路工程局有限公司 | Automatic monitored control system and its application method for shield launching section end well precipitation |
| CN110593288A (en) * | 2019-09-06 | 2019-12-20 | 河北中基华工程项目管理有限公司 | Well point dewatering and drainage device for deep foundation pit |
| CN112779920A (en) * | 2021-01-27 | 2021-05-11 | 中建一局集团第一建筑有限公司 | Precipitation construction method for emergency precipitation small pipe well |
| CN113047324A (en) * | 2021-03-25 | 2021-06-29 | 中国十七冶集团有限公司 | Drainage structures falls in combination of high permeability stratum deep basal pit |
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| JP2007239286A (en) * | 2006-03-08 | 2007-09-20 | Kajima Corp | Construction method for lowering underground water level |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277807A (en) * | 2018-04-09 | 2018-07-13 | 浙江乔兴建设集团有限公司 | Deep basal pit artesian water is prominent to gush decompression control water-bound |
| CN108547315A (en) * | 2018-04-21 | 2018-09-18 | 天津中擎建筑工程有限公司 | Sough basement construction scheme |
| CN109930614A (en) * | 2019-04-12 | 2019-06-25 | 中亿丰建设集团股份有限公司 | Deep basal pit pipe well runs the not damaged construction method of closed bottom structure |
| CN109930614B (en) * | 2019-04-12 | 2024-05-17 | 中亿丰建设集团股份有限公司 | Nondestructive construction method for deep foundation pit tube well operation closed bottom plate structure |
| CN110055987A (en) * | 2019-05-31 | 2019-07-26 | 长沙市市政工程有限责任公司 | A kind of rich water mobile sand layer foundation pit tool-type dewatering well device |
| CN110409474A (en) * | 2019-08-07 | 2019-11-05 | 中煤第三建设（集团）有限责任公司 | It is placed in the pipe well for lower water of diaphram wall bottom |
| CN110409474B (en) * | 2019-08-07 | 2024-03-26 | 中煤第三建设（集团）有限责任公司 | Pipe well dewatering well arranged at bottom of underground diaphragm wall |
| CN110485448A (en) * | 2019-08-20 | 2019-11-22 | 中交第二公路工程局有限公司 | Automatic monitored control system and its application method for shield launching section end well precipitation |
| CN110593288A (en) * | 2019-09-06 | 2019-12-20 | 河北中基华工程项目管理有限公司 | Well point dewatering and drainage device for deep foundation pit |
| CN112779920A (en) * | 2021-01-27 | 2021-05-11 | 中建一局集团第一建筑有限公司 | Precipitation construction method for emergency precipitation small pipe well |
| CN113047324A (en) * | 2021-03-25 | 2021-06-29 | 中国十七冶集团有限公司 | Drainage structures falls in combination of high permeability stratum deep basal pit |
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| Publication number | Publication date |
|---|---|
| CN104420476B (en) | 2016-05-18 |
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